Face recognition auto focus apparatus for a moving image

Details Face recognition auto focus apparatus for a moving image Face recognition auto focus apparatus for a moving image

2008-08-13

2011-11-29

Tran, Sinh (Department: 2622)

Television

Camera, system and detail

Optics

C348S348000, C348S349000, C348S353000, C396S089000, C396S121000, C396S123000, C396S124000

Reexamination Certificate

active

08068164

ABSTRACT:
A data processing device includes: a face-detecting unit to detect a face region from an input image input from an imaging unit which images a subject including a face; a setting unit to calculate subject distance based on the face size of the face detected by the face-detecting unit, and set limits as a focus lens operation range before and after a focus lens position with the calculated subject distance as focal distance; a detecting unit to move a focus lens within the limits set by the setting unit, and detect a focal point where a detection value corresponding to the contrast intensity obtained from a face frame including the face detected by the face-detecting unit is not smaller than a threshold; and a control unit to determine, in a case wherein a focal point has been detected within predetermined set time, the focal point thereof as a focus position.

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